iCalendar/ RSS feed into Calendar

We use the XML File Transformation module to display external feeds within various Arena portals.  It's not really data coming into Arena or integrating, just displaying it within.  This works well enough for our needs.  We use the regular calendar differently (primarily for things needing registration), so they both coexist independently.  

Here is the site I am trying to embed. https://73965194.view-events.com/calendar/73965194/ Can I find the XML file using inspect or do I have to go elsewhere to find it?

I'm not familiar with MyCurchEvents.com's API interface, etc.  Their help has a lead: https://help.mychurchevents.com/search?collectionId=5b579a452c7d3a03f89cf2ce&query=api  You may end up needing to use the RSS Reader module (plus creating a CSS file to format it) instead of XML if they don't offer the XML feed.  They do offer the RSS feed.  For us, it's as simple as changing &format=rss to &format=xml in the URL, but we're using ServiceU at the moment.